Here’s how to fix the grayed-out display color of the Windows 10 taskbar You’ll notice that the “Start, taskbar, and action center” checkbox under “Show backlight color for following areas” is grayed out and you can’t change it. The problem starts when you don’t change the “Choose Your Color” option and keep the “Light” option enabled. To configure this option, you must select the “Dark” or “Custom” option from the “Select Color” drop-down list, and the “Show accent color on Start menu, taskbar, and action center” checkbox will be immediately enabled. Therefore, Windows automatically disables this option and blocks the ability to change or modify it. It’s because the new Light theme doesn’t support coloring, i.e., taskbar, Start menu, and action center colors. What’s the reason for the grayed-out display color on the Windows 10 taskbar